Wheeled grader.



A. MORTON M. A. BRAAE.

WHEELS-D GBADBB. Arruummx 'FILED Amm, 191s.

Patented sept. 1, 1914.

2 SHSETSSHEET l.

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OFFICE.

ein

WHEELED GRADER.

`Specification. ofrLetters Patent.:VY Y Y Prtgnted Applicasen nea august7, 191s. seriez Nes,eee.

To all whom it may concerner fr Be it known that We, Anninnnniz NORTONand Mannion A. Beans, citizens"v of the United States, residing atLabonte, Vinthe county of Converse and State of Wyoming, have inventedcertain new and Viiseful In provenientey in Wheeled Graders, of whichthe following is a specification'.

This invention relates broadly to a culture implements, and hasparticular ref erence to new and useful improvements in graders of thescraper type. Y

As its principal object, the present invention contemplates theprovision of a grader constructed in such manner that the scrapingeleinentproper may be lifted upV and out of engagement with the groundbythe manipulation of levers operable from the drivers seat.:Y

A11 objectV of equal importance with the foregoing is to construct thescraping ele-V ment and its associated liftingmechanisni in such mannerthat at the will of the operator either the forward or rear terminal ofthe scraper'ma Vbe lifted from engagement with the groun or road-bedfsothat vvlirnV the grader is VemployedV in hilly conntrieswliere theinclines and depressionsjareunusually severe, thefterminals ofthe scrapg'element may be separately'adjusted'to. Efrei/"entdueengagementwith'the grounl A further object is to provide gef Wheeledgraderconstrncted with such regardfto proportion, number, andarrangementof parts that it may be cheaply manufactured, will be durable andeflicient in its action, and is formed of a minimum number of parte, sothat the Vliability of breakage orrderange nient, and consequentnecessity of repair of the parts of the machine, will be Vreduced to aminimum.

TheV above and additional objects arcaccomplished by suchV means as areillus- Ytrated in the accompanying drawings, de-

scribed in thefollowing*specilication and then more particularlypointed'out in the claims which are appended hereto and form a part ofthis application.

llVith reference Yto the drawings, wherein We have illustratedthepreferred embodiment of'our invention as it is Yreduced to practice, andthroughoutVV the several views of which similar reference numeralsdesignato corresponding parts, Figure 1 is a perspective View taken fromone rear Vcorner of' traine',[member sept. niais.

the assembled Ytrueture and looking inft'ie direction Voitlre Yoppositeforward corner; Fig. 2 is a side :elevation with the scraper in elevatedYposi ion; Fig. 3 is a vertical sectionV taire ngitudinally of theinaehine.VV

Y roceedlng'ovv Vto the description offthe drawings;tinaV numeral 10designates I'as an entiretylthelwheeled supporting frame ,in whichfthescraper is adjustably mounted. The Wheeled supporting frame includes aYeshapedbody portion constructed preferably of tvvoinetalliebars li and12,V which are bent intermediate their length to prf duce thefrrvardlydiverging beams 13 and la, andfthe stem beamY 15, Ywhich as illustratedVinthe' drawings includes tliegtno terminals iof Vthemembers 11V l2 lwhich are secured ilfthe' desired lixedrelation te each other byzmeansof a bolt orfsiniilar fas toning Ydevice'l and a removable inn Y1?;Thekingspin 17 is formed 'l 1 theibight portion of the Uesapd'casterforl l atthe'lower"eriiiinalfo'fvhich is carriedY af wheel'. fbviouslyby thus providing avviieeifo: the pivotedlcaster type,vthegradermaybereadily turned in a small cmnpass.V Thesupportingstandard 20 of a spring seat lV is arranged between the adjacent Yfacesoftlieportion l5 and is hel-d in position by the king-pin 17 and member16.

The rear terminalsV of the beams 13 and '114 are secu red;-atljiee1;il;VYthe oppositeY ends of' Va squared 'axle'PJ'by'meansof JULShapedclamping' bolt's. i InV practice, Ltil/ennembersll and 12 anerbentVsotiat'tlrelstenl Yportion of the Y-frarne'svilllie Va planehigiierftlranf'tat'o' the rear terminals, the obvionscpurpose of thisconstructionbeing to facilitate the adjustment of the forward end ofthenioldbeard frame''or'scraper when? V@ground is encountered. Wheels 24and 25ct any desired type are proridedvitiithe axle 22. n Y l he"souper, which is adjustably Vmounted AVthe "virilieeled frame abovedescribed, consists Ibroadly in a substantially rectangular iframe' anda number of moldboards Vwhich;are mounted transversely thereof and in'parailels aced Vrelation to each; other. The frame o the scrapingelement includes ,ia pair of side Vbeams 26 and 27,' to the forwarderniinals of which are secnre'd't'he loix i r terminals Vof asubstantially U-shap'ed 28. The frame 'inembe'i'f is 'larrang'ed'withits bight portienfuppermost and is provided with a central aperturethrough which the hing-pin 17 projects. Upon reference to Fig. 3particularly, it will be observed that the bight portion of the member3S is mounted for sliding movement on the king-pin 17 between the stem15 of the Y-frame and the upper end of the fork 18.

rllhe moldboards 29 are in the preferred embodiment formed of lengths ofsteel or cast iron, and are secured by bolts, rivets, or other suitablefastening devices 30 to the beams 2G and 2T, being mounted, as abovestated, in parallel spaced relation to each other and transversely tothe line of draft of the grader. Hooks 31 are carried by the forwardterminals of the members 26 and 27 and are provided for the attachmentof swingletrees or double trees, as occasion may demand.

As a means for raising and lowering the moldboard frame, there has beenprovided three lifting levers 32, 33 and 34. The members and 33 arerespectively pivoted on segmental clutch plates and 35 mounted at therear terminals of the members 13 and la. lire cables or similar flexibleelements 86 aud 3T connect the levers 32 and 33 with the rear terminalsof the side frame liembers 2G and 2T. In securing the terminals of theflexible element to the members E2G and 27, the preferred embodiment ofthis invention employs metallic rings 38 which are disposed in aperturesformed in the frame members. The cables 3G and 3T operate on pulleys 39and Ll0 which are jourraled in brackets -ll and 42 formed integral withand extending upwardly from the rear terminals of the base plates a3 and4A on which the members 3l and 355 are formed. rllhe levers 32 and areequipped with the usual clutch rod and associated spring mechanisn'i, sothat the driver of the grader may by manipulation of the levers adjustthe rear terminal of the moldboard frame to any desired elevation.

For the adjustment of the forward end of the moldboard frame, there hasbeen provided the lever 34 which is pivoted on the clutch plate -lisimilar in construction to the members Si and 35 and equipped with asimilar base plate ll-G, pulley el?, and bracket lt will be obvious uponrefer-I ence to Fig. 3 particularly, that by adjusting the lever 34, thedriver may raise or lower the forward end of the moldboard frame whichis operatively connected to the lever by a wire cable or similarflexible element 49. A draft tongue carries an attaching iron l which ispivotally connected to the wheeled frame by a pivot pin 52 which ispassed through the eyelet 53 of a pair of spaced irons r-l and 55 formedintegral with and extending upwardly from the forward terminal of theplate 56. The,

plate 56 is mounted for swinging movement on the king-pin 1T, and isinterposed between the frame member 2S and the stem 15 of the Y-frame. Aremovable bracing rod .3T is provided to strengthen the draft tongue.

ln reduction to practice, we have found that the form of our invention,illustrated in the drawings and referred to in the above description asthe preferred embodiment, is the most eliieient and practical; yetrealizing that the conditions concurrent with the adoption of our devicewill necessarily vary, we desire'to emphasize the fact that variousminor changes in details of construction, proportion and arrangement ofparts may be resorted to, when required, without sacrificing any of theadvantages of our invention, as defined in the appended claims.

What we claim is 1. A grading machine including a Y- shaped supportingframe having a pair of rear wheels and a single forward wheel, a forkfor the forward wheel and a king pin rising therefrom, the king pinbeing connected to and fixed with respect to the forward end of theframe, a substantially rectangular scraper.J flexible means suspendingthe scraper from the frame, and a U-shaped frame member carried by theforward end of the scraper, said U-shaped member having its bightportion mounted for vertical sliding movement on thc king pin.

A grading machine including a Y- shaped supporting frame having a pairof rear wheels and a single forward wheel, a forli for the forward wheeland a king pin rising therefrom, a shoulder formed at the junction ofthe forli and the king pin, the hing pin being connected to and fixedwith respect to the forward end of the supporting frame, a substantiallyrectangular scraper, flexible means carried by the supporting frame andconnected to the scraper for suspending the scraper from the frame, anda U-shaped member carried by the forward end of the frame, said U-shapedmember having its bight portion aperlured and mounted for verticalsliding movement 0n the hing pin, said shoulder being adapted. to limitthe movement of the U-shaped inember.

3. A grading machine including a Y- shaped supporting frame having apair of rear wheels and a single forward wheel, a fork for the forwardwheel and a king pin rising therefrom, the king pin being connected toand fixed with respect to the forward terminal of the frame, a shoulderformed at the junction of the fork and the hing pin, a sera Jer,flexible means suspending the scraper rom the frame, means controllingthe last-mentioned means for adjusting the elevation of the scraper, and

by the engagement of the U-shsped member 10 with the shoulder,

In testimony whereof We affix our signa,- tures in presence of twowitnesses.

ALEXANDER MORTON. MAURICE A. BRAAE. Witnesses:

J. C. SAUL, HENRY H. FoxToN.

means for holding the scraper against longitudinal movement with respectto the frame, said last-mentioned means including a U-shaped memberrising vertically from the scraper and having an opening in its bghtportion, said openin receiving the king pin and being of less iameterthan the said shoulder, whereby the downward movement of the forward endof the scraper is limited Copies of this patent may be obtained for vscents each, 'by addressing the Commissioner of Patents,

Washington, D.

